void nilfs_evict_inode(struct inode *inode)
{
struct nilfs_transaction_info ti;
struct super_block *sb = inode->i_sb;
struct nilfs_inode_info *ii = NILFS_I(inode);
int ret;
if (inode->i_nlink || !ii->i_root || unlikely(is_bad_inode(inode))) {
truncate_inode_pages_final(&inode->i_data);
clear_inode(inode);
nilfs_clear_inode(inode);
return;
}
nilfs_transaction_begin(sb, &ti, 0); /* never fails */
truncate_inode_pages_final(&inode->i_data);
/* TODO: some of the following operations may fail. */
nilfs_truncate_bmap(ii, 0);
nilfs_mark_inode_dirty(inode);
clear_inode(inode);
ret = nilfs_ifile_delete_inode(ii->i_root->ifile, inode->i_ino);
if (!ret)
atomic64_dec(&ii->i_root->inodes_count);
nilfs_clear_inode(inode);
if (IS_SYNC(inode))
nilfs_set_transaction_flag(NILFS_TI_SYNC);
nilfs_transaction_commit(sb);
/* May construct a logical segment and may fail in sync mode.
But delete_inode has no return value. */
}
/*
when cache device is removed...
*/
int _lun_rmcdev(lun_t * lun, uint32_t devnum)
{
fragdesc_t fdesc;
uint32_t fragnum;
frag_t *frag;
uint32_t nr_miss;
int ret = SCE_ERROR;
if ((lun) && (lun->fragmap) && (devnum < SCE_MAXCDEV)) {
for (fragnum = 0; fragnum < lun->nr_frag; fragnum++) {
fdesc = lun->fragmap[fragnum];
if ((fdesc & FRAGDESC_MAPPED) == 0)
continue;
if (devnum != SCE_PFIDDEV(fdesc))
continue;
frag = _pfid2frag((sce_t *) lun->scehndl, fdesc, NULL);
if (!frag)
continue;
nr_miss = frag->nr_miss;
lun->fragmap[fragnum] = (nr_miss & FRAGDESC_DATAMASK);
atomic64_dec(&lun->stats.alloc_sctrs);
atomic64_sub(frag->nr_valid * SCE_SCTRPERPAGE,
&lun->stats.valid_sctrs);
}
ret = SCE_SUCCESS;
}
return ret;
}
void ceph_adjust_quota_realms_count(struct inode *inode, bool inc)
{
struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
if (inc)
atomic64_inc(&mdsc->quotarealms_count);
else
atomic64_dec(&mdsc->quotarealms_count);
}
static void au_hfsn_free_mark(struct fsnotify_mark *mark)
{
struct au_hnotify *hn = container_of(mark, struct au_hnotify,
hn_mark);
AuDbg("here\n");
au_cache_free_hnotify(hn);
smp_mb__before_atomic_dec();
atomic64_dec(&au_hfsn_ifree);
wake_up(&au_hfsn_wq);
}
static void __devexit nf10_remove(struct pci_dev *pdev){
struct nf10_card *card;
// free private data
printk(KERN_INFO "nf10: releasing private memory\n");
card = (struct nf10_card*)pci_get_drvdata(pdev);
if(card){
nf10fops_remove(pdev, card);
nf10iface_remove(pdev, card);
if(card->cfg_addr) iounmap(card->cfg_addr);
if(card->tx_dsc) iounmap(card->tx_dsc);
if(card->rx_dsc) iounmap(card->rx_dsc);
pci_free_consistent(pdev, card->tx_dne_mask+1, card->host_tx_dne_ptr, card->host_tx_dne_dma);
pci_free_consistent(pdev, card->rx_dne_mask+1, card->host_rx_dne_ptr, card->host_rx_dne_dma);
if(card->tx_bk_dma_addr) kfree(card->tx_bk_dma_addr);
if(card->tx_bk_skb) kfree(card->tx_bk_skb);
if(card->tx_bk_size) kfree(card->tx_bk_size);
if(card->tx_bk_port) kfree(card->tx_bk_port);
if(card->rx_bk_dma_addr) kfree(card->rx_bk_dma_addr);
if(card->rx_bk_skb) kfree(card->rx_bk_skb);
if(card->rx_bk_size) kfree(card->rx_bk_size);
kfree(card);
}
pci_set_drvdata(pdev, NULL);
// release memory
printk(KERN_INFO "nf10: releasing mem region\n");
release_mem_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
release_mem_region(pci_resource_start(pdev, 2), pci_resource_len(pdev, 2));
// disabling device
printk(KERN_INFO "nf10: disabling device\n");
pci_disable_msi(pdev);
pci_clear_master(pdev);
pci_disable_device(pdev);
atomic64_dec(&detected_cards);
}
static __init void test_atomic64(void)
{
long long v0 = 0xaaa31337c001d00dLL;
long long v1 = 0xdeadbeefdeafcafeLL;
long long v2 = 0xfaceabadf00df001LL;
long long onestwos = 0x1111111122222222LL;
long long one = 1LL;
atomic64_t v = ATOMIC64_INIT(v0);
long long r = v0;
BUG_ON(v.counter != r);
atomic64_set(&v, v1);
r = v1;
BUG_ON(v.counter != r);
BUG_ON(atomic64_read(&v) != r);
TEST(64, add, +=, onestwos);
TEST(64, add, +=, -one);
TEST(64, sub, -=, onestwos);
TEST(64, sub, -=, -one);
TEST(64, or, |=, v1);
TEST(64, and, &=, v1);
TEST(64, xor, ^=, v1);
TEST(64, andnot, &= ~, v1);
RETURN_FAMILY_TEST(64, add_return, +=, onestwos);
RETURN_FAMILY_TEST(64, add_return, +=, -one);
RETURN_FAMILY_TEST(64, sub_return, -=, onestwos);
RETURN_FAMILY_TEST(64, sub_return, -=, -one);
FETCH_FAMILY_TEST(64, fetch_add, +=, onestwos);
FETCH_FAMILY_TEST(64, fetch_add, +=, -one);
FETCH_FAMILY_TEST(64, fetch_sub, -=, onestwos);
FETCH_FAMILY_TEST(64, fetch_sub, -=, -one);
FETCH_FAMILY_TEST(64, fetch_or, |=, v1);
FETCH_FAMILY_TEST(64, fetch_and, &=, v1);
FETCH_FAMILY_TEST(64, fetch_andnot, &= ~, v1);
FETCH_FAMILY_TEST(64, fetch_xor, ^=, v1);
INIT(v0);
atomic64_inc(&v);
r += one;
BUG_ON(v.counter != r);
INIT(v0);
atomic64_dec(&v);
r -= one;
BUG_ON(v.counter != r);
INC_RETURN_FAMILY_TEST(64, v0);
DEC_RETURN_FAMILY_TEST(64, v0);
XCHG_FAMILY_TEST(64, v0, v1);
CMPXCHG_FAMILY_TEST(64, v0, v1, v2);
INIT(v0);
BUG_ON(atomic64_add_unless(&v, one, v0));
BUG_ON(v.counter != r);
INIT(v0);
BUG_ON(!atomic64_add_unless(&v, one, v1));
r += one;
BUG_ON(v.counter != r);
INIT(onestwos);
BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1));
r -= one;
BUG_ON(v.counter != r);
INIT(0);
BUG_ON(atomic64_dec_if_positive(&v) != -one);
BUG_ON(v.counter != r);
INIT(-one);
BUG_ON(atomic64_dec_if_positive(&v) != (-one - one));
BUG_ON(v.counter != r);
INIT(onestwos);
BUG_ON(!atomic64_inc_not_zero(&v));
r += one;
BUG_ON(v.counter != r);
INIT(0);
BUG_ON(atomic64_inc_not_zero(&v));
BUG_ON(v.counter != r);
INIT(-one);
BUG_ON(!atomic64_inc_not_zero(&v));
r += one;
BUG_ON(v.counter != r);
}
static __init int test_atomic64(void)
{
long long v0 = 0xaaa31337c001d00dLL;
long long v1 = 0xdeadbeefdeafcafeLL;
long long v2 = 0xfaceabadf00df001LL;
long long onestwos = 0x1111111122222222LL;
long long one = 1LL;
atomic64_t v = ATOMIC64_INIT(v0);
long long r = v0;
BUG_ON(v.counter != r);
atomic64_set(&v, v1);
r = v1;
BUG_ON(v.counter != r);
BUG_ON(atomic64_read(&v) != r);
INIT(v0);
atomic64_add(onestwos, &v);
r += onestwos;
BUG_ON(v.counter != r);
INIT(v0);
atomic64_add(-one, &v);
r += -one;
BUG_ON(v.counter != r);
INIT(v0);
r += onestwos;
BUG_ON(atomic64_add_return(onestwos, &v) != r);
BUG_ON(v.counter != r);
INIT(v0);
r += -one;
BUG_ON(atomic64_add_return(-one, &v) != r);
BUG_ON(v.counter != r);
INIT(v0);
atomic64_sub(onestwos, &v);
r -= onestwos;
BUG_ON(v.counter != r);
INIT(v0);
atomic64_sub(-one, &v);
r -= -one;
BUG_ON(v.counter != r);
INIT(v0);
r -= onestwos;
BUG_ON(atomic64_sub_return(onestwos, &v) != r);
BUG_ON(v.counter != r);
INIT(v0);
r -= -one;
BUG_ON(atomic64_sub_return(-one, &v) != r);
BUG_ON(v.counter != r);
INIT(v0);
atomic64_inc(&v);
r += one;
BUG_ON(v.counter != r);
INIT(v0);
r += one;
BUG_ON(atomic64_inc_return(&v) != r);
BUG_ON(v.counter != r);
INIT(v0);
atomic64_dec(&v);
r -= one;
BUG_ON(v.counter != r);
INIT(v0);
r -= one;
BUG_ON(atomic64_dec_return(&v) != r);
BUG_ON(v.counter != r);
INIT(v0);
BUG_ON(atomic64_xchg(&v, v1) != v0);
r = v1;
BUG_ON(v.counter != r);
INIT(v0);
BUG_ON(atomic64_cmpxchg(&v, v0, v1) != v0);
r = v1;
BUG_ON(v.counter != r);
INIT(v0);
BUG_ON(atomic64_cmpxchg(&v, v2, v1) != v0);
BUG_ON(v.counter != r);
INIT(v0);
BUG_ON(atomic64_add_unless(&v, one, v0));
BUG_ON(v.counter != r);
INIT(v0);
BUG_ON(!atomic64_add_unless(&v, one, v1));
r += one;
BUG_ON(v.counter != r);
#ifdef CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
INIT(onestwos);
BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1));
r -= one;
BUG_ON(v.counter != r);
INIT(0);
BUG_ON(atomic64_dec_if_positive(&v) != -one);
BUG_ON(v.counter != r);
INIT(-one);
BUG_ON(atomic64_dec_if_positive(&v) != (-one - one));
BUG_ON(v.counter != r);
#else
#warning Please implement atomic64_dec_if_positive for your architecture and select the above Kconfig symbol
#endif
INIT(onestwos);
BUG_ON(!atomic64_inc_not_zero(&v));
r += one;
BUG_ON(v.counter != r);
INIT(0);
BUG_ON(atomic64_inc_not_zero(&v));
BUG_ON(v.counter != r);
INIT(-one);
BUG_ON(!atomic64_inc_not_zero(&v));
r += one;
BUG_ON(v.counter != r);
#ifdef CONFIG_X86
pr_info("passed for %s platform %s CX8 and %s SSE\n",
#ifdef CONFIG_X86_64
"x86-64",
#elif defined(CONFIG_X86_CMPXCHG64)
"i586+",
#else
"i386+",
#endif
boot_cpu_has(X86_FEATURE_CX8) ? "with" : "without",
boot_cpu_has(X86_FEATURE_XMM) ? "with" : "without");
#else
pr_info("passed\n");
#endif
return 0;
}
static __init int test_atomic64(void)
{
long long v0 = 0xaaa31337c001d00dLL;
long long v1 = 0xdeadbeefdeafcafeLL;
long long v2 = 0xfaceabadf00df001LL;
long long onestwos = 0x1111111122222222LL;
long long one = 1LL;
atomic64_t v = ATOMIC64_INIT(v0);
long long r = v0;
BUG_ON(v.counter != r);
atomic64_set(&v, v1);
r = v1;
BUG_ON(v.counter != r);
BUG_ON(atomic64_read(&v) != r);
INIT(v0);
atomic64_add(onestwos, &v);
r += onestwos;
BUG_ON(v.counter != r);
INIT(v0);
atomic64_add(-one, &v);
r += -one;
BUG_ON(v.counter != r);
INIT(v0);
r += onestwos;
BUG_ON(atomic64_add_return(onestwos, &v) != r);
BUG_ON(v.counter != r);
INIT(v0);
r += -one;
BUG_ON(atomic64_add_return(-one, &v) != r);
BUG_ON(v.counter != r);
INIT(v0);
atomic64_sub(onestwos, &v);
r -= onestwos;
BUG_ON(v.counter != r);
INIT(v0);
atomic64_sub(-one, &v);
r -= -one;
BUG_ON(v.counter != r);
INIT(v0);
r -= onestwos;
BUG_ON(atomic64_sub_return(onestwos, &v) != r);
BUG_ON(v.counter != r);
INIT(v0);
r -= -one;
BUG_ON(atomic64_sub_return(-one, &v) != r);
BUG_ON(v.counter != r);
INIT(v0);
atomic64_inc(&v);
r += one;
BUG_ON(v.counter != r);
INIT(v0);
r += one;
BUG_ON(atomic64_inc_return(&v) != r);
BUG_ON(v.counter != r);
INIT(v0);
atomic64_dec(&v);
r -= one;
BUG_ON(v.counter != r);
INIT(v0);
r -= one;
BUG_ON(atomic64_dec_return(&v) != r);
BUG_ON(v.counter != r);
INIT(v0);
BUG_ON(atomic64_xchg(&v, v1) != v0);
r = v1;
BUG_ON(v.counter != r);
INIT(v0);
BUG_ON(atomic64_cmpxchg(&v, v0, v1) != v0);
r = v1;
BUG_ON(v.counter != r);
INIT(v0);
BUG_ON(atomic64_cmpxchg(&v, v2, v1) != v0);
BUG_ON(v.counter != r);
INIT(v0);
BUG_ON(atomic64_add_unless(&v, one, v0));
BUG_ON(v.counter != r);
INIT(v0);
BUG_ON(!atomic64_add_unless(&v, one, v1));
r += one;
BUG_ON(v.counter != r);
#if defined(CONFIG_X86) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || \
defined(CONFIG_S390) || defined(_ASM_GENERIC_ATOMIC64_H) || defined(CONFIG_ARM)
INIT(onestwos);
BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1));
r -= one;
BUG_ON(v.counter != r);
INIT(0);
BUG_ON(atomic64_dec_if_positive(&v) != -one);
BUG_ON(v.counter != r);
INIT(-one);
BUG_ON(atomic64_dec_if_positive(&v) != (-one - one));
BUG_ON(v.counter != r);
#else
#warning Please implement atomic64_dec_if_positive for your architecture, and add it to the IF above
#endif
INIT(onestwos);
BUG_ON(!atomic64_inc_not_zero(&v));
r += one;
BUG_ON(v.counter != r);
INIT(0);
BUG_ON(atomic64_inc_not_zero(&v));
BUG_ON(v.counter != r);
INIT(-one);
BUG_ON(!atomic64_inc_not_zero(&v));
r += one;
BUG_ON(v.counter != r);
#ifdef CONFIG_X86
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_INFO "atomic64 test passed for %s platform %s CX8 and %s SSE\n",
#ifdef CONFIG_X86_64
"x86-64",
#elif defined(CONFIG_X86_CMPXCHG64)
"i586+",
#else
"i386+",
#endif
boot_cpu_has(X86_FEATURE_CX8) ? "with" : "without",
boot_cpu_has(X86_FEATURE_XMM) ? "with" : "without");
#else
;
#endif
#else
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_INFO "atomic64 test passed\n");
#else
;
#endif
#endif
return 0;
}
static __init void test_atomic64(void)
{
long long v0 = 0xaaa31337c001d00dLL;
long long v1 = 0xdeadbeefdeafcafeLL;
long long v2 = 0xfaceabadf00df001LL;
long long onestwos = 0x1111111122222222LL;
long long one = 1LL;
atomic64_t v = ATOMIC64_INIT(v0);
long long r = v0;
BUG_ON(v.counter != r);
atomic64_set(&v, v1);
r = v1;
BUG_ON(v.counter != r);
BUG_ON(atomic64_read(&v) != r);
TEST(64, add, +=, onestwos);
TEST(64, add, +=, -one);
TEST(64, sub, -=, onestwos);
TEST(64, sub, -=, -one);
TEST(64, or, |=, v1);
TEST(64, and, &=, v1);
TEST(64, xor, ^=, v1);
TEST(64, andnot, &= ~, v1);
RETURN_FAMILY_TEST(64, add_return, +=, onestwos);
RETURN_FAMILY_TEST(64, add_return, +=, -one);
RETURN_FAMILY_TEST(64, sub_return, -=, onestwos);
RETURN_FAMILY_TEST(64, sub_return, -=, -one);
INIT(v0);
atomic64_inc(&v);
r += one;
BUG_ON(v.counter != r);
INIT(v0);
atomic64_dec(&v);
r -= one;
BUG_ON(v.counter != r);
INC_RETURN_FAMILY_TEST(64, v0);
DEC_RETURN_FAMILY_TEST(64, v0);
XCHG_FAMILY_TEST(64, v0, v1);
CMPXCHG_FAMILY_TEST(64, v0, v1, v2);
INIT(v0);
BUG_ON(atomic64_add_unless(&v, one, v0));
BUG_ON(v.counter != r);
INIT(v0);
BUG_ON(!atomic64_add_unless(&v, one, v1));
r += one;
BUG_ON(v.counter != r);
#ifdef CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
INIT(onestwos);
BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1));
r -= one;
BUG_ON(v.counter != r);
INIT(0);
BUG_ON(atomic64_dec_if_positive(&v) != -one);
BUG_ON(v.counter != r);
INIT(-one);
BUG_ON(atomic64_dec_if_positive(&v) != (-one - one));
BUG_ON(v.counter != r);
#else
#warning Please implement atomic64_dec_if_positive for your architecture and select the above Kconfig symbol
#endif
INIT(onestwos);
BUG_ON(!atomic64_inc_not_zero(&v));
r += one;
BUG_ON(v.counter != r);
INIT(0);
BUG_ON(atomic64_inc_not_zero(&v));
BUG_ON(v.counter != r);
INIT(-one);
BUG_ON(!atomic64_inc_not_zero(&v));
r += one;
BUG_ON(v.counter != r);
}
